diff --git a/requirements.txt b/requirements.txt
index 1a48947..9561f51 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,10 +9,10 @@ mkl-random==1.1.1
 mkl-service==2.3.0
 numpy==1.19.0
 olefile==0.46
-Pillow==7.1.2
+Pillow
 pyparsing==2.4.7
 python-dateutil==2.8.1
-PyYAML==5.3.1
+PyYAML
 scikit-learn==0.23.1
 scipy==1.5.0
 six==1.15.0